HUBUNGAN ANTARA PERILAKU BULLYING TERHADAP KEPERCAYAAN DIRI SISWA SISWA KELAS IX.B DI  SMP N 31 BATAM. Liberosis: Jurnal Psikologi dan Bimbingan Konseling, [S. l.], v. 16, n. 4, p. 1–10, 2025. DOI: 10.5281/zenodo.17224390. Disponível em: https://cibjournal.com/index.php/liberosis/article/view/155. Acesso em: 2 oct. 2026.